21375225

素因数分解:

$3^3\times 5^2\times {\mathrm{31667}}^1$

素因数の和:31686

約数の個数: 24

約数和(自身を含む): 39268320

約数和(自身を除く): 17893095

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 31667, 95001, 158335, 285003, 475005, 791675, 855009, 1425015, 2375025, 4275045, 7125075, 21375225]

約数ペア:

[(1, 21375225), (3, 7125075), (5, 4275045), (9, 2375025), (15, 1425015), (25, 855009), (27, 791675), (45, 475005), (75, 285003), (135, 158335), (225, 95001), (675, 31667)]